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The router must be configured to produce audit records containing information to establish the source of the events.


Overview

Finding ID Version Rule ID IA Controls Severity
V-207121 SRG-NET-000077-RTR-000001 SV-207121r604135_rule Medium
Description
Without establishing the source of the event, it is impossible to establish, correlate, and investigate the events leading up to an outage or attack. In order to compile an accurate risk assessment and provide forensic analysis, security personnel need to know the source of the event. In addition to logging where events occur within the network, the audit records must also identify sources of events such as IP addresses, processes, and node or device names.
STIG Date
Router Security Requirements Guide 2021-03-16

Details

Check Text ( C-7382r382256_chk )
The router must log all packets that have been dropped via the access control list.

If the router fails to log all packets that have been dropped via the control list, this is a finding.

Log output must contain the source IP address and port of the filtered packets.

If the logged output does not contain source IP address and port of the filtered packets, this is a finding.
Fix Text (F-7382r382257_fix)
Configure the router to record the source address in the log record for packets being dropped.